40511

Appears in sequences

• The smallest magic constant for n X n magic square with prime entries (regarding 1 as a prime).at n=20A073502
• a(n) = pq + pr + qr with p = prime(n), q = prime(n+1), and r = prime(n+2).at n=28A127345
• Composites in A127345.at n=16A127347
• Number of ways to place 2 nonattacking kings on an n X n cylindrical chessboard.at n=16A194650
• Number T(n,k) of parts in all proper k-times partitions of n into distinct parts; triangle T(n,k), n >= 1, 0 <= k <= max(0,n-2), read by rows.at n=63A327632
• Denominator of harmonic mean of 3 consecutive primes. Numerators are A331259.at n=28A331260